CN1165801A - coating synergistic urea - Google Patents

coating synergistic urea Download PDF

Info

Publication number
CN1165801A
CN1165801A CN 96107706 CN96107706A CN1165801A CN 1165801 A CN1165801 A CN 1165801A CN 96107706 CN96107706 CN 96107706 CN 96107706 A CN96107706 A CN 96107706A CN 1165801 A CN1165801 A CN 1165801A
Authority
CN
China
Prior art keywords
urea
fertilizer
complexing
soil
improve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN 96107706
Other languages
Chinese (zh)
Other versions
CN1063166C (en
Inventor
原俊钦
池静波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN96107706A priority Critical patent/CN1063166C/en
Publication of CN1165801A publication Critical patent/CN1165801A/en
Application granted granted Critical
Publication of CN1063166C publication Critical patent/CN1063166C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Fertilizers (AREA)

Abstract

The product is a composite nitrogen fertilizer formed by coating a special liquid film on the surface of urea and curing, and the process comprises two steps of chemical film coating liquid and physical coating: the coating liquid is formed by complexing inorganic and organic matters. They are divided into monarch, minister, guide, adjuvant: the element N is monarch, the medium and trace elements are ministers, the composite multifunctional complexing agent and the slow release agent are guides, and the element K, P is an adjuvant. The new development trend of slow-release, scientific, high-efficiency, compound and quantitative fertilizers is met; the HA and the amino acid are added, so that the HA and the amino acid are far superior to the like products; there are two coating modes available for different scales. The product has the agricultural and chemical functions of slow effect, synergy, quality improvement, soil improvement, stress resistance and growth stimulation.

Description

Coated synergistic urea
The existing coated material that is coated with membranous type fertilizer can be divided into three major types, function singleness.
(1) thermoplastic resin: PE, PVC, PP, DVAC etc.;
(2) thermosetting resin: resol, pure phenol resins;
(3) inorganic salt and sulphur: sulphur ammonium, phosphorus ammonium, sulphur etc.
Having occurred three kinds of technologies on the production technique is: (1) is added urease inhibitor and produced long-acting carbamide in common urea: (2) are added trace element and are produced long-acting carbamide in urea production; (3) in urea, add benzene 2 phenol production long-acting carbamide.
Estimate that according to world FAO 50% of world's grain yield is obtained by chemical fertilizer.Nitrogen fertilizer amount occupies first of the chemical fertilizer again, and urea is the outstanding person in the nitrogenous fertilizer.Its nitrogen content is the main source of manure of agricultural up to 46.3%.But it is the unit quick-acting fertilizer after all, and the N utilization ratio is low, and its utilization ratio has only 36% according to the study, and the serious situation that China has occurred is that the height fertilising of agricultural is uneven, hangs down utilization rate of fertilizer, has become a major issue of agriculture production.
Current chemical fertilizer industry constantly develops, and just opens up again towards the direction of scientific, high efficiency, slowization, quantification, compoundization, customizations, and new-type fertilizer arises at the historic moment.The proposition of coated synergistic urea project is novel fertile kind of a slow, synergy of developing for the new trend that adapts to the chemical fertilizer industrial development, the background of our project verification that Here it is.
We are at the guiding theory of project verification: 1, from inquiring into the rational application of fertilizer, start with and do research from improving the fertilizer benefit.The rational application of fertilizer is divided three aspects: fertilizing method, fertilizing time, rate of fertilizer application.On fertilizing method, divide two contents again: adjust the fertilising position and change the fertilizer moulding.We hold on to " changing the fertilizer moulding " this key, and this new-type fertilizer is studied, and have succeeded in developing NEW TYPE OF COMPOSITE nitrogenous fertilizer---the coated synergistic urea with individual style finally.
2. we are round high Fertilization Level of China's present stage, major issue in low this agriculture production of utilization rate of fertilizer, the important source of manure that contains N at this height of urea carries out " changing the fertilizer moulding ", makes it to increase the fertilising benefit, reduce urea fertilization, improve its utilization ratio.Urea belongs to the acyl ammonium fertilizer, is manured into soil, necessary nitrated one-tenth nitric nitrogen earlier, or be hydrolyzed into ammonium nitrogen, can be utilized by plant absorbing.Its utilization ratio only 36% in order further to improve its nitrogen use efficiency, is improved fertilizing method, from factory, in industrial production, just solve the problem of the rational application of fertilizer, scientific research and agriculture production combine, improve utilization rate of fertilizer, reach the purpose that improves the fertilizer benefit to the greatest extent.Our overall goal that Here it is and process program design phiolosophy.At present, research in this respect both at home and abroad is a lot of, makes a general survey of the most function singleness of additive method, the cost height, and complex process, investment is high.One of production technique:
The first step: in reactor A, add 535 kilograms of tap water, the start running, the anionic PAM that slowly adds 3,000,000 molecular weight: 30 kilograms, edible Gelatinum oxhide: 15 kilograms, (the reinforced time was controlled at about 15 minutes), stir and it was fully dissolved in 60 minutes, beginning feeds steam-heated cal(l)andria to 80 degree of 0.5MPa in reacting kettle jacketing, and constant temperature stirred 60-90 minute.Add 85%H 3PO 4: 45 kilograms.
Second step: Ensure Liquid element: (always the reinforced time was controlled at 15 minutes) adds M slowly in reactor A 3SO 47H 2The O:15 kilogram, MnSO 44H 2The O:15 kilogram, H 3BO 3: 15 kilograms.And (NH 4) 6MO 244H 2The O:15 gram, CaSO 47H 2O): 80 grams, CoSO 47H 2The O:150 gram, the HAK:20 kilogram, constant temperature stirs 30 minutes (complexing), KH 2PO 4: 10 kilograms, activator Na 3PO 4: 2 kilograms, the EDTA disodium salt: 10 kilograms, intensification 90-95 degree stirs 60 minutes (secondary complexing).
The 3rd step: add 200 kilograms in tap water in reactor B, start is turned round and feed 0.5MPa steam in reacting kettle jacketing and is warmed up to 85 degree, slowly adds the Ur:60 kilogram, FeSO 47H 2O:65 kilogram ZnSO 47H 2The O:15 kilogram, constant temperature stirred 60 minutes.Import among the reactor A (final complexing) constant temperature then and stirred 30 minutes, stop vapour and feed water quench to 60 degree and shut down and take the dish out of the pot, get product---coating liquid.Two of production technique:
The first step: in reactor A, add 535 kilograms of tap water, the start running, the anionic PAM that slowly adds 3,000,000 molecular weight: 15 kilograms, edible Gelatinum oxhide: 15 kilograms, (the reinforced time was controlled at about 7-10 minute), stir and it was fully dissolved in 60 minutes, beginning feeds 0.5MPa in reacting kettle jacketing steam-heated cal(l)andria to 80 degree constant temperature stirred 60-90 minute.
Second step: Ensure Liquid element; (always the reinforced time was controlled at 15 minutes) adds M slowly in reactor A 3SO 47H 2The O:15 kilogram, MnSO 44H 2The O:15 kilogram, H 3BO 3: 13 kilograms, and (NH 4) 6MO 244H 2The O:15 gram, CuSO 47H 2The O:80 gram, CoSO 47H 2The O:150 gram, HAK:15 kilogram, 30%P H=5 amino acid: 15 kilograms, constant temperature stirs 30 minutes (complexing) KH 2PO 4: 10 kilograms, tensio-active agent: Na 3PO 4: 2 kilograms, the EDTA disodium salt: 10 kilograms, the jin 90-95 degree that heats up stirs 60 minutes (secondary complexing).
The 3rd step: add 200 kilograms in tap water in reactor B, the start running also adds at reactor and to feed 0.5MPa steam in the cover and be warmed up to 85 degree, slowly adds the Ur:60 kilogram, FeSO 47H 2The O:65 kilogram, ZnSO 47H 2O:15 kilogram constant temperature stirred 60 minutes, imported then that (final complexing) constant temperature stirred 60 minutes among the reactor A, stopped vapour and fed water quench to 60 degree and shut down and take the dish out of the pot, and got product---coating liquid.Three of production technique:
The first step: in reactor A, add 535 kilograms of tap water, the start running, the anionic PAM that slowly adds 3,000,000 molecular weight: 20 kilograms, edible Gelatinum oxhide: 20 kilograms, (the reinforced time was controlled at about 8-12 minute) stirred and it fully dissolved in 60 minutes, beginning can be gone into steam-heated cal(l)andria to 80 degree of 0.5MPa in reacting kettle jacketing, constant temperature stirred 60-90 minute.
Second step: Ensure Liquid element: (ask when always feeding in raw material and be controlled at 15 minutes) adds 85%H slowly in reactor A 3PO 4: 5 kilograms, MgSO 47H 2The O:13 kilogram, MnSO 44H 2O:80 kilogram, and H 3BO 3: 10 kilograms, (NH 4) 6MO 244H 2The O:15 kilogram, CuSO 47H 2O:80 gram, and CoSO 47H 2The O:150 gram, HAK:15 kilogram, 30%P H=5 amino acid: 15 kilograms, constant temperature stirs 60 minutes (complexing) K 2SO 4: 16 kilograms, activator: Na 3PO 4: 2 kilograms, the EDTA disodium salt: 10 kilograms, intensification 90-95 degree stirs 60 minutes (secondary complexing).
The 3rd step: add 200 kilograms in tap water in reactor B, start is turned round and feed 0.5MPa steam in reacting kettle jacketing and is warmed up to 85 degree, slowly adds the Ur:60 kilogram, FeSO 47H 2The O:65 kilogram, ZnSO 47H 2O:15 kilogram constant temperature stirs 60 public clocks.Import among the reactor A (final complexing) constant temperature then and stirred 60 minutes, stop vapour and feed water quench to 60 degree and shut down and take the dish out of the pot, get product---coating liquid.
On a small scale: stir in JDY-350C type stirrer with the coating liquid of urea amount 7/1000ths to 8 and urea and promptly to make coated synergistic urea, product test quality index such as table 1 in 2 minutes.
On a large scale: the spray equipment of a cover spray coating liquid on be in prilling tower, other has design.Table 1 product detected result
Project Quality index HG2095-91 (coating urea)
Acceptable end product Salable product
Total nitrogen (in butt %) ??????46.4 ????46.3 ????46.0
Biuret (%)
Moisture content (%) ??????0.5 ????1.0 ????1.5
Coating substance content (%)
In chelated iron ??????0.010 ????0.007 ????0.007
" manganese meter ??????0.004 ??????- ??????-
" zinc meter ??????0.003 ??????- ??????-
" potassium meter ??????0.005 ??????- ??????-
Phosphorus ??????0.004 ??????- ??????-
Fig. 1, Fig. 2 can illustrate:
1. outstanding N word is along the exploitation of a N font exploitation direction.
(1). we at target be: solve the present high Fertilization Level of China, the agriculture major issue of low fertilizer benefit.
(2). we are at institute's study route: along the rational application of fertilizer → fertilizing method → change fertilizer moulding → raising nitrogen use efficiency and effect of fertilizer → development two-supremes one excellent agricultural.
(3) our direction of development is: the direction along the new type nitrogen fertilizer of scientific, slowization, long-actingization, compoundization, quantification is developed.
2. technological process: under the condition that does not change urea technique, with the simplest, most economical, less investment, the physical method of instant effect and chemical process process combined are produced coated synergistic urea, and economical rationality is solely set one.
3. our target is: both can improve urea and render a service, can improve the double goal of urea benefit again.Make product quantification slowization, high efficiency, scientific, the characteristics of compoundization, the new trend of catering to the chemical fertilizer development.For development two-supremes one excellent agricultural provides good fertilizer.
4. on prescription is formed: the measure that we have adopted fertilizer to combine with inorganic fertilizer, not only change the fertilizer moulding, and changed the agricultural voltinism energy of fertilizer, the function that is had on the land fertility is simply fantastic cultivating.
5. choosing at sustained release dosage: we adopt a kind of multifunctional slow-release agent, and it has the slow release long-acting performance, have the ability of improving the soil again, also have the effect of complexing agent, and do not cause soil pollution, and are how sharp harmless, achieve many things at one stroke.
6. selecting for use at complexing agent: adopted multi-functional compound complex agent, they divide monarch, minister, make, help, and harmoniously, have outside the interior complexing action, also provide for crop: organic matter, soil improvement agent, somatomedin nutritive element etc.Its function is many, and the chemically stable constant is big, and the complexing wide ranges increases the solubleness of nutritive element, helps crop and absorbs.
Therefore it is different from like product, obviously is better than like product.
The achievement that obtains
1. coated synergistic urea makes the nitrogen use efficiency of urea bring up to 42-45% from 36%, promptly improves 6-9 percentage point.
2. because coated synergistic urea makes the change of the moulding of urea, urea become by single fertilizer kind for nitrogen to be that a composite nitrogen fertilizer is fertile plant, it not only can be long-acting, synergy can be improved the soil again, improve crop quality.
3. it has multiple degeneration-resistant function: anti-saline and alkaline, cold-resistant, drought resisting, anti-denitrification, anti-ly harden, resistant to lodging, comprehensive resistance such as disease and insect resistance, anti-leaching loss, anti-volatilization.
4. owing to added HA and multiple nutritive element, coordinate mutually it is not only increased production obviously, and have the characteristic of the quality that improves agricultural-food, now make a concrete analysis of as follows through chelating:
A. the application of each nutritive element in coated synergistic urea:
As everyone knows, crop is to have three kinds of element consumption maximum: N, P, K.These three kinds of elements be it is called the azophoska of promptly often saying for major fertilizer elements, and the demand of Ca, Mg, S, Fe is taken second place, and is called as moderate-element, and Mn, Mo, Zn, B, Cu, Co etc. often are called as trace element.All have in this fertilizer, and our product design designs as general composite nitrogen fertilizer, some crop is special procured element, we without a moment's thought.And these elements are the necessary nutritive elements of various crops, each have their own physiological function in making object.Therefore, they are of equal importance, and we satisfy must adding of crop to fill a prescription, in the hope of synergy.These elements are manured into soil easily by soil fixing, and utilization ratio is low, and we have carried out chelating with them, to improve their utilization ratio according to the principle of " complex compound of some metallic element can improve its solubleness in water ".
(1) Fe:Fe is to the Physiology and biochemistry effect of crop:
Fe makes indispensable element in the object inner chlorophyll forming process, is again to make multiple nitrogenize enzyme in the object, the integral part of beans protoheme and nitrogenase.Therefore, Fe influences the sorption of crop, photosynthesis and nitrate reduction, the amount of nitrogen fixation of root nodule bacterium is increased, and plant is vigorous, so add-on is many in this prescription, moreover we become urea iron and tertiary iron phosphate to its complexing, urea iron is a kind of new variety, and tertiary iron phosphate is a kind of highly stable inner complex, is difficult for being fixed by soil.We allocate this fertilizer into the form of chelated iron, save sequestrant to reduce production costs, and this is one of our distinctive feature.
(2) Mg: contain Mgo amount 2.32% in the brown desert soil of Xinjiang, crop only is 20% of k amount to the demand of Mg, but crop is very weak to the receptivity of magnesium, and with K antagonistic action is arranged, and excessive K can show magnesium deficiency.Magnesium also has antagonistic action with Mn, with P the coordination synergism is arranged.And Xinjiang soil is rich K soil, and well-known, magnesium ion is more active, be convenient to spread and transport, so we add magnesium, it and photosynthesis have substantial connection, it is not only chlorophyllous important component part, and participates in the fixed action of carbonic acid gas, can activate the enzyme of carton dioxide assimilation.So we have also added a considerable amount of Mg.
(3) S: we fill a prescription with the form adding of sulfate radical, and amount is also considerable, and it is organic important component part.Using under the situation of N, P, K at present sulfate radical-free again in the urea of usefulness, and P in the soil in Xinjiang in a large number HUp to about 8.9, we consider in the possibility of Xinjiang a lack of sulfur too big, because matrix is through long-term weathering in the soil, the very difficult decomposition of residual S is made for thing and absorbs again, and crop needs the S amount will account for the 1/10-1/5 of N, rape in peanut, cotton, the cruciate flower crop, crops such as clover need the S amount the highest, are cereal secondly, herbage etc., and the root of crop mainly absorbs sulphur with the form of sulfate radical, and crop is obviously increased production, still to allocate it into be rational.
(4) Mn: manganese is that the crop normal growth is grown one of necessary trace element, it is the activator of plurality of enzymes in the plant materials, can promote chlorophyllous formation, participate in photosynthesis, the assimilation of carbohydrate, it all is indispensable in the decarboxylation in the nutrition of amino nitrogen, nitrate transforms and hydration, pretends the thing indispensable Mn that grows.Field crops such as wheat, paddy rice, corn, peanut, soybean, cotton, tobacco, apple, tomato, potato, beet all need Mn, so we add more Mn.
(5) Zn: zinc is that the crop normal growth is grown one of necessary trace element, it is the composition of some enzymes, the division and the photosynthesis that participate in the synthetic and cell of growth hormone Yeast Nucleic Acid concern very close, it participates in the conversion of carbohydrate, promote chlorophyllous formation, the more important thing is that it can improve diseases and insect pests resistance of crops, improve the anti-salt property of crop, promote seed germination, increase output, particularly important in the north, so the Zn that adds in our prescription amount is also considerable, we allocate this fertilizer into the form of urea zinc, to save the sequestrant of high price, urea zinc is again a kind of new fertile kind, can directly fertilize the soil, this also is our distinctive feature.
(6) B:B is one of necessary nutritive element of crop, and especially Cruciferae such as rape also have cotton, wheat, corn, fruit tree, peanut, beet, Chinese cabbage etc. that tangible production-increasing function is all arranged.It and Ca have antagonistic action, and it and N have coordinative role.Execute B and can promote the absorption of crop N, improve the utilization ratio of N, to grain, cotton, oil, sugar, really, dish all has production-increasing function in various degree, wherein remarkable with effect of increasing production such as rape, cotton, apples, barley, wheat, paddy rice because it has the lignified effect of the root system of impelling, there are good lodging tolerance and effect of increasing production.So we also take much count of the effect of this element, the amount of allocating into is decided according to calcium boron ratio in crop and the soil.
(7) Mo: the soil in the north belongs to alkaline earth ground, the P that has more HValue reaches about 8.9, its Mo content, and than the relative much less of other soil properties, and water-soluble Mo is still less, so we have allocated molybdenum element into.But molybdenum and nitrogen fixation relation are very close, are the necessary trace elements of plant.It is also relevant with nitro N reduction, when plant reduces with nitro N, has Mo could reduce ammonium N.This is because Mo is the integral part and the activator of nitrate reductase.Molybdenum can promote crop to N utilize level.It can also promote the assimilation of carbon element, to improve absorption and the conversion of crop to carbonic acid gas.The most responsive crop of Mo is pulse family and Cruciferae, also has Gramineae.Mo has coordinative role to phosphorus sulphur, and the absorption of mutually promoting is said a kind of general fertilizer and just seemed important so add Mo, so we have gone out to allocate into an amount of Mo.
(8) Cu: copper has been regarded as the needed trace element of crop for a long time, and it has hormesis to plant growth.The a large amount of P fertilizer of long-term application can make copper and P form insoluble phosphoric acid salt, cause to lack the copper phenomenon, and the eroded effective copper content of aeolian sandy soil of water erosion of the Northwest is lower, and P HCopper precipitates with copper hydroxide in the high soil, and effectively Cu reduces.Crop is little to the consumption of copper, but in this ecotope for satisfy needing the copper crop as the needs of wheat, onion, lettuce, spinach, barley, oat, cauliflower, Radix Dauci Sativae, Sunflower Receptacle, potato, beet, clover, cabbage, cucumber, radish, tomato etc., we have to allocate into copper, though consumption is little, must mend in season in season.
(9) Co: the relation of cobalt and crop shows mainly on the leguminous plants that it is very big to the solid N effect of the root nodule bacterium of leguminous crop.Cobalt can improve the solid N enzymic activity of root nodule bacterium, strengthens the effect of solid N.Effect is also quite big on herbage, especially can give cobalt very low in the alkaline soil, and we are in the pastoral area and also add little cobalt in this fertilizer.
Each element is all through being sequestered in this fertilizer, so its utilization ratio just is different from the effectiveness and the action time of direct adding in sum.
B, HA add the effect in this fertilizer:
We have allocated a considerable amount of HA in this product, and this is the another characteristics that we fill a prescription, because HA has following vital role on agricultural:
(1) HA is good soil improvement agent:
HA can improve the ventilation property of soil, water-retentivity, water-permeable, the P of correction soil HValue, the nutritive element of increase soil, the organic nutrient and the moisture of increase soil are adjusted redox reaction, and have the effect of disease and insect resistance, so HA is a kind of multi-functional good soil improvement agent.
(2) infertile field of HA effect:
HA is a kind of organism, also contains various trace elements (chatting before the infertile field effect of these elements) except that containing P, N, K, Mg, O, Ca, S.Itself is a kind of excellent organic fertilizer, and it also contains functional groups such as hydroxyl, methyl, carbonyl, alcoholic extract hydroxyl group.These functional groups can control the dissociation equilibrium of phosphorus in the soil; The invalid phosphorus of fixed in the soil is dissociated into water-soluble phosphorus by plant absorbing, makes this fertilizer have phosphate solubilization, equaled to join suitable phosphate fertilizer, played the effect of composite fertilizer.Because it can prevent phosphorus by soil fixing, promote the absorption of crop to phosphorus, promote crop root to grow, increase the activity of microorganism in the soil, quicken organic corruption, improve available phosphorus concentration, for plant utilization.HA also has the sequestering action of sequestrant, and the trace element in the soil is not by its chelating and by soil fixing.Make plant micro-more effective the absorbing in the soil, impel the healthy and strong growth of crop.It can also generate humic urea with urea complexation and play long-acting, improves the urea utilization ratio.Its also adsorbable metal ion also can play and effectively utilize effect of trace elements in addition.So the effect of the infertile field of HA is that many-sided effect is remarkable.
(3) HA plays growth-stimulating to crop:
HA can increase the activity of the intravital metabolic process of plant, and the stimulating plant growth promotes the root nodule bacterium growth, promotes plant root system development, regulates plant growth, and plays effect resistant to lodging.
(4) action of agricultural chemicals that has of HA:
HA can be used as a kind of pesticide with insecticidal function and uses, and can be used as the plant physiology disease and gives anti-agent etc. and be used for agricultural.Because the above-mentioned functions of HA, this fertilizer add HA and just this fertilizer become organic and inorganic fertilizer, it makes this fertilizer performance better, and fertilizer efficiency is higher.Economic benefit and social benefit are also all fairly obvious, still allocated an amount of HA into.
Similar technology contrast both domestic and external
1, on production method be with the one of different of the fertilizer of filming both at home and abroad: the production method that we have adopted physical method and chemical process to combine, with chemical legal system coating liquid, film with the physics method.Method is simple, does not change urea production process and equipment, reduced investment, and instant effect, cost is low.
2, the existing coated material that is coated with membranous type fertilizer can be divided into three major types, function singleness.
(1) thermoplastic resin: PE, PVC, PP, DVAC etc.;
(2) thermosetting resin: resol, pure phenol resins;
(3) inorganic salt and sulphur: sulphur ammonium, phosphorus ammonium, sulphur etc.
And the coated material that we adopt is organic and inorganic the combination, particularly adding has HA and specially selects the amino acid that adds, this be all inquire about both at home and abroad less than, their matching property is very superior, synergy, slow are arranged, improve the soil, improve quality, effect such as degeneration-resistant, stimulating growth, agricultural chemicals, and function is many.
3, we have adopted nearly five kinds more than multi-functional complexing agent, and this also is that we are exclusive, they compound, and cost is low, and complex performance is good, and stability is high.
4, our the many kinds of industrial chemicals medicament of selection all have multifunctionality, the effect, the effect of raising fertilizer efficiency, slow releasing function, action of agricultural chemicals, the effect of improving the soil that have complexing agent when having, less investment, function is many, so our product application effect is far superior to like product.
5, we have added an amount of P, K element in prescription, make it to coordinate absorption and the utilization of N, add assisting a ruler in governing a country of each nutritive element, make urea that the performance of composite fertilizer be arranged, having catered to scientific, slowization, synergyization, the quantification of chemical fertilizer development, the general trend of compoundization, also is our distinctive feature.
6, existing three kinds of technologies are on the production high technology: (1) is added urease inhibitor and is produced long-acting carbamide in common urea, and (2) are added trace element and produced long-acting carbamide in urea production; (3) add in urea benzene 2 phenol production long-acting carbamide, our production technique is then different fully with them.
We have the synergy slow compared with similar products in sum, improve the soil, and are degeneration-resistant, and growth-stimulating improves the multi-functional of crop quality, still be its called after coated synergistic urea.
Economic and Efficiency Analysis (is example with 10,000 t/a)
1. rule film: 10,000 t/a
2. investment: 80,000 yuan of costs of equipment, civil engineering 200-300M 2, 500,000 yuan of current assetss
3. the output value: 2,500,000 yuan/a
4. cost: tip heigh: 105.5 ten thousand yuan/the a unit cost: 105.5 yuan/t
Raw materials cost wherein: 35.58 yuan/t of 35.58 ten thousand yuan/a
Packing: 7.5 yuan/t of 7.5 ten thousand yuan/a
Power: 0.01 yuan/t of 0.01 ten thousand yuan/a of water
0.45 yuan/t of 0.45 ten thousand yuan/a of electricity
0.21 yuan/t of 0.21 ten thousand yuan/a of steam
Wage and additional: 19.24 yuan/t of 19.24 ten thousand yuan/a
Manufacturing expense: 38.53 yuan/t of 38.53 ten thousand yuan/a
Financial expense: 4.08 yuan/t of 4.08 ten thousand yuan/a
Add up to: 105.4 yuan/t of 105.4 ten thousand yuan/a
5. 144.6 yuan/t of ten thousand yuan/a of profits tax: 250-105.4=144.6
6. value added tax: 25.62 yuan/t of 25.62 ten thousand yuan/a
7 net incomes: 118.98 yuan/t of 118.98 ten thousand yuan/a
The characteristic of product and the effect on agricultural
1. efficient: because the effect of coating adhesive compound makes its adsorptive power greater than common urea, be difficult for loss in therefore being manured into soil, improved soil for the nitrogen ability, be its one of reason efficiently; Its denitrification weak (denitrification to be microorganism nitrate be reduced into gaseous state nitride or gaseous nitrogen and cause the process of nitrogen loss); Its denitrification is less than common urea, thereby the nitrogen that is stored in the soil is many when executing with amount urea, makes soil that higher nitrogen concentration be arranged in a long time, for crop in soil, absorbs enough good conditions of nitrogen creation be its former efficiently therefore two; Since it be chelated with multiple in, micronutrient element, can promote the plant harmonic growth to grow, can improve crop quality again and be its former efficiently therefore three; It in soil because the provide protection of coating colloid thing reduces its leaching loss amount, nitrogen use efficiency contrast common urea can improve 6-8% be its former efficiently therefore four; Because its high efficiency can be economized on fertile 10-15%, coated synergistic urea promptly per ton is equivalent to the effectiveness of 1.1-1.15% ton common urea.
2. long-acting: improve the soil and can discharge mild colloid coated material because we have adopted to have, make it have the characteristics of slow release, its fertilizer efficiency is doubled about, can make overfertilization not in crop early stage, the later stage is not taken off fertilizer, can save the recruitment of topdressing again.
3. anti-caking not: because the coating synergistic urea scribbles one deck glued membrane, its intergranular avidity is reduced, bridging power weakens, and prevented from caking helps preserving and using.
4. degeneration-resistant: as to make it have diseases and insect pests resistance owing to adding HA and trace elements zn, Cu etc., cold tolerance, anti-salt alkali ability.Because adding has K, B to make it have lodging tolerance.
5. its highly versatile: the N that removes in the urea is general main fertilizer kind, in the various chelating attitudes of adding, the crop that adapts to of trace element, amino acid and HA is comprehensive, also can be according to Different Crop and soil, and increase and decrease allotment at any time, thereby make its versatility extremely strong.
Table 2 farming examination effect table
Farm crop Stimulation ratio Quality Input-output ratio
Paddy rice ??9-11％ (not surveying) ????1∶21
Wheat ??11.2％ Protein improves 0.28% Methionin and improves 0.014% ????1∶26.1
Cotton ??14.6％ Velveteen is long to increase by 2.0% ????1∶27
Corn ??12.1％ Protein improves 6.3% amino acid and improves 0.19% ????1∶24.3
Beet ??12.3％ Sugar degree improves 2.0% ????1∶13.7
Use main points
1. this product release to birth ratio is slower, and release peak period slow approximately about 5 days than common urea so use as if topdressing, should correspondingly be used in advance than common urea routine.
Since its guarantor's nitrogen in soil can force rate common urea strong, the absorption rate of nitrogen is higher, so when comparison is decided fertilizer and used to produce, still can reach same output than common urea Shaoshi 10-15% on amount of application; When if equivalent is used, then there is tangible volume increase to render a service.
3. it is applicable in the different soils and uses, and guarantor's nitrogen ability is all strong than common urea, but guarantor's nitrogen ability of clay is better than sandy soil, and the latter should repeatedly execute on a small quantity to good.
4. collect the crop of nourishing body for vegetables, beet, melon and fruit etc., easily the bigger effect of increasing production of performance is received the seed crop to wheat, paddy rice, peanut etc., should suitably execute phosphorus, potash fertilizer for well according to the crop needs, can be more satisfied in conjunction with soil testing and fertilizer recommendation.
Table 3 is recommended with reference to amount of application
Farm crop Economic optimum spraying amount The optimum amount of application
Wheat 25Kg/ mu
Corn 26Kg/ mu is executed in the 400Kg/ per mu yield 18.2Kg/ mu is executed in the 500Kg/ per mu yield 25Kg/ mu
Cotton 25Kg/ mu
Beet 25Kg/ mu
Paddy rice 25Kg/ mu
Annotate: the optimum amount of application refers to the amount of application postscript in medium fertility soil in the table:
Monarch: be meant nitrogen contained in the urea.Minister: be meant the necessary middle micronutrient element of crop.Make: be meant the composite multifunction sustained release dosage of allocating into, compound many merits complexing agent, soil improvement agent, growth stimulant, sterilant, adverse-resistant agent etc.Assistant: be meant the coordination element P, the K that promote that N absorbs.
Complexing agent A in the compound complex agent is a urea, code name Ut; Complexing agent H is EDTA; Complexing agent C is HA, and code name is organic 1; Complexing agent D is PAM; Complexing agent E is an amino acid, and code name is organic 2; The composite multifunction sustained release dosage is PAM and edible Gelatinum oxhide; The inorganic nutrients composition is: M1 is that Fe, M2 are that Zn, M3 are that Mn, M4 are that Mg, M5 are that Mo, M6 are that Cu, M7 are that Co, M8 are K, and this patent technology also has P, S, B non-metallic element in addition.The organotrophy composition has: HAK, multiple amino acids, edible Gelatinum oxhide, PAM.
Has having of soil improvement agent effect: PAM, HAK, edible Gelatinum oxhide, amino acid; Have and separate P and separate having of K effect: HA, H 3PO 4, H 3BO 4, amino acid, what have growth stimulation has: HA; Have having of sterilant effect: HA, Cu, Zn etc.; What have degeneration-resistant effect has HA, amino acid, a B etc.; Have having of solid N effect: HA, Me, Co, Cu, Zn etc., be applicable to the device (being fit to use below 50,000 T/a) that small-scale production is used: major equipment: one of reactor A:1000L, one of reactor B:500L films with one on stirrer JDY-350C type.
In the accompanying drawing 2: 1, research purpose: be at the present high Fertilization Level of China, the serious problems in the low utilization rate of fertilizer agriculture production conduct a research for improving the fertilizer benefit.2, study route: along the rational application of fertilizer, fertilizing method, the route that changes the fertilizer moulding realizes improving utilization rate of fertilizer and urea effectiveness.3, the direction target of developing this product is: develop and a kind ofly have the universal composite nitrogen fertilizer of slowization, high efficiency, scientific, compoundization, quantification in order to development two-supremes one excellent agricultural.

Claims (4)

1, coated synergistic urea is to be coated with on the common urea surface to carry out a kind of special coating liquid, through doing new fertile kind of a kind of composite nitrogen fertilizer that solid oxidation is made.Its production technology feature is: meeting the chemical fertilizer new development trend of scientific, slowization, high efficiency, quantification, compoundization, is the high-tech product that urea updates.Concerning factory, need not change original urea production process, but also can reduce the carbamide dust that the prilling tower cat head is discharged, both can improve urea production, can reduce the pollution that dust causes again; Development model is made of the system coating liquid and the two portions of filming.The product technology feature is: have slow, efficient, multiple-effect, fertile, moistureproof, the anti-caking of water saving joint, stimulate plant growth, degeneration-resistant, improve the soil, reduce fertilizer leaching loss and environmental pollution, has the weak characteristic of denitrification simultaneously, but balance soil constituent to a certain extent, improve the soil growing environment of crop, improve the quality of crop, features such as saving of work and time.Product is compared nitrogen use efficiency with common urea can improve 6---9 percentage points, can reduce agricultural cost.
2, the technical characterictic of the special coating liquid of system is in the production technique according to claim 1: the industrial chemicals of employing is the organic and inorganic complexing method that combines: inorganic part has: nutritive elements such as Fe, Mg, P, K, Zn, Mn, Mo, Cu, Co, S, B; Organic moiety has: EDTA disodium salt, HA, PAM, edible Gelatinum oxhide, amino acid etc.; The complexing agent that adopts is by EDTA disodium salt, Ur, HA, H 3PO 4, the composite multifunction complexing agent formed such as amino acid; The sustained release dosage that adopts is composite multifunction sustained release dosages such as PAM, HA, edible Gelatinum oxhide; The complexing method that adopts is the gimmick of classification complexing, and the complexing of ferrous iron elder generation is become urea iron and tertiary iron phosphate, and the complexing of divalent zinc elder generation becomes urea zinc, add system again and other compositions carry out complexing; On prescription, divide monarch, minister, make, help quantitative compatibility, scientific and precise.
3, the feature of development model according to claim 1 is: adopt the moulding of change fertilizer to make its slowization, to improve the benefit that nitrogen use efficiency improves fertilizer; Adopt the quantitative compatibility of scientific methods, make its harmonious benefit that improves fertilizer, to reach the purpose of product high efficiency, multiple-effectization; Adopt chemical legal system coating liquid, physics method to film and make its compoundization,, make this composite nitrogen fertilizer become the high-tech product that urea updates, for development two-supremes one excellent agricultural provides new fertile a kind to improve its agricultural voltinism energy.
4, three kinds of listed coating liquid Recipes are the classification complexing in its invention scheme; Its coating process just lists stirrer and stirs application production coated synergistic urea in small-scale production and the means of agricultural production department, and should adopt the technology that spray is filmed in prilling tower in the scale operation, present technique also can provide a complete set of technology (not relating in the specification sheets), and cost is low.
CN96107706A 1996-05-19 1996-05-19 coating synergistic urea Expired - Fee Related CN1063166C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN96107706A CN1063166C (en) 1996-05-19 1996-05-19 coating synergistic urea

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN96107706A CN1063166C (en) 1996-05-19 1996-05-19 coating synergistic urea

Publications (2)

Publication Number Publication Date
CN1165801A true CN1165801A (en) 1997-11-26
CN1063166C CN1063166C (en) 2001-03-14

Family

ID=5119720

Family Applications (1)

Application Number Title Priority Date Filing Date
CN96107706A Expired - Fee Related CN1063166C (en) 1996-05-19 1996-05-19 coating synergistic urea

Country Status (1)

Country Link
CN (1) CN1063166C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102612503A (en) * 2009-09-28 2012-07-25 Fb科技控股公司 Fertilizer compositions and methods
CN102701889A (en) * 2012-07-09 2012-10-03 河南心连心化肥有限公司 Slow-release urea and preparation method thereof
CN104202962A (en) * 2012-01-12 2014-12-10 Fb科技控股公司 Modulation of plant biology
US10035736B2 (en) 2009-09-03 2018-07-31 Fbsciences Holdings, Inc. Seed treatment compositions and methods
WO2020121164A1 (en) 2018-12-11 2020-06-18 Sabic Global Technologies B.V. Organic chelated zinc coated fertilizer for better crops and soil health
WO2021198914A1 (en) 2020-03-31 2021-10-07 Sabic Global Technologies B.V. Zinc coated urea fertilizer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH082988A (en) * 1994-06-17 1996-01-09 Reitetsuku Kk Production of slow-acting coated granular fertilizer
AU692665B2 (en) * 1995-02-20 1998-06-11 Impact Fertilisers Pty Ltd Addition of nutrients to granular urea fertilizer
CN1078577C (en) * 1996-01-13 2002-01-30 刘祥义 Slow release fertilizer and preparing process thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10035736B2 (en) 2009-09-03 2018-07-31 Fbsciences Holdings, Inc. Seed treatment compositions and methods
CN102612503A (en) * 2009-09-28 2012-07-25 Fb科技控股公司 Fertilizer compositions and methods
CN102612503B (en) * 2009-09-28 2015-09-09 Fb科技控股公司 Ru 2006101161 and method
CN104202962A (en) * 2012-01-12 2014-12-10 Fb科技控股公司 Modulation of plant biology
US9485991B2 (en) 2012-01-12 2016-11-08 Fbsciences Holdings, Inc. Modulation of plant biology
US10448635B2 (en) 2012-01-12 2019-10-22 Fbsciences Holdings, Inc. Modulation of plant biology
US11712040B2 (en) 2012-01-12 2023-08-01 Fbsciences Holdings, Inc. Modulation of plant biology
CN102701889A (en) * 2012-07-09 2012-10-03 河南心连心化肥有限公司 Slow-release urea and preparation method thereof
CN102701889B (en) * 2012-07-09 2014-04-02 河南心连心化肥有限公司 Slow-release urea and preparation method thereof
WO2020121164A1 (en) 2018-12-11 2020-06-18 Sabic Global Technologies B.V. Organic chelated zinc coated fertilizer for better crops and soil health
WO2021198914A1 (en) 2020-03-31 2021-10-07 Sabic Global Technologies B.V. Zinc coated urea fertilizer

Also Published As

Publication number Publication date
CN1063166C (en) 2001-03-14

Similar Documents

Publication Publication Date Title
CN1314632C (en) Series multielement chelate special-purpose composite fertilizer and method for preparing the same
CN107011024A (en) A kind of promoting root growth promotees the chitosan-containing humic acid liquid fertilizer of fruit
CN1569758A (en) Organic slow-release fertilizer additive
CN1944356A (en) Full element formula fertilizer and its preparing method and use
CN102503632A (en) Selenium-rich organic/inorganic fertilizer for producing selenium-rick rice as well as application method thereof
CN1084320C (en) Long-lasting special-purpose compound mixed fertilizer for corn and rice
CN102863277A (en) Production method of dual-acid chelating organic-inorganic composite fertilizer
CN108990459B (en) Direct returning-to-field decay promoting method suitable for rice stubble wheat straws in Huaihe region
CN104163720A (en) Special fertilizer synergist for walnut trees
CN101041605A (en) Soil phosphorus element activating agent and application thereof
CN101717305A (en) Corn special controlled-release composite fertilizer
CN105884513A (en) Special fertilizer for single-seed precision sowing of peanuts and preparation method of special fertilizer
CN104177160A (en) Special fertilizer for corn
CN1048237C (en) Multi-effect inorganic-organic compound fertilizer
CN107011066A (en) Special compound fertilizer for corns, preparation method and fertilizing method
CN101880194B (en) Disposable special rice fertilizer for crab raising rice field
CN1810736A (en) Long-acting rice fertilizer
CN1063166C (en) coating synergistic urea
CN102531777A (en) Long-acting alkaline nitrogenous fertilizer and production method thereof
CN105461399A (en) Fertilizer special for millet and application method thereof
CN101289342A (en) Clean water extract of tailings without sundry fungus pollution for planting edible fungus
CN105348024A (en) Special compound fertilizer for corn
CN1057749C (en) High-efficiency organic fertilizer
CN108794224A (en) A kind of paddy rice-dedicated fertilizer
CN102442857A (en) Long-acting fertilizer with much activity, many elements and many nutrients

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee